skyrunning en · NOUN
Etymology
From sky + running.
Meanings
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(uncountable) An extreme sport involving running on mountains or at high altitude.
I was photographing two of the best mountain runners in the world in a race that would soon become legendary in the world of trail, mountain, ultra and skyrunning: Transvulcania.
2016, Ian Corless, “Introduction”, in Running Beyond: Epic Ultra, Trail and Skyrunning Races, →ISBN: